docker-image.yml

name: Docker Image CI/CD

on:
  push:
    branches: [ "main" ]
    tags:
      - 'v*'
  release:
    types: [ published ]
  pull_request:
    branches: [ "main" ]

jobs:
  login:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Define Docker Image Name
        id: image_name
        run: |
          if [[ "${{ github.event_name }}" == "push" && "${{ github.ref }}" == refs/tags/* ]]; then
            echo "IMAGE_NAME=${{ github.repository }}:${{ github.ref_name }}" >> $GITHUB_ENV
          elif [ "${{ github.event_name }}" == "release" ]; then
            echo "IMAGE_NAME=${{ github.repository }}:${{ github.event.release.tag_name }}" >> $GITHUB_ENV
          else
            echo "IMAGE_NAME=${{ github.repository }}:$(echo $GITHUB_SHA | head -c7)" >> $GITHUB_ENV
          fi

      - name: Build the Docker image
        run: |
          docker build . --file Dockerfile --tag $IMAGE_NAME

      - name: Push the Docker image
        run: |
          docker push $IMAGE_NAME

      - name: Tag image as latest
        if: github.ref == 'refs/heads/main'
        run: |
          docker tag $IMAGE_NAME ${{ github.repository }}:latest
          docker push ${{ github.repository }}:latest